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Finding the Fourth Proportional to 341,566.64, 512,085.98 and 128,330.04

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Solution

The fourth proportional to 341,566.64, 512,085.98 and 128,330.04 is: 192,395.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,566.64 : 512,085.98 = 128,330.04 : x
  2. Step 2: Convert to fraction form
    341,566.64/512,085.98 = 128,330.04/x
  3. Step 3: Cross multiply
    341,566.64x = 512,085.98 × 128,330.04
  4. Step 4: Simplify right side
    341,566.64x = 65,716,014,296.84
  5. Step 5: Solve for x
    x = 65,716,014,296.84/341,566.64
  6. Step 6: Final answer
    x = 192,395.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.